Finding the Fourth Proportional to 836,186.68, 1,153,918.25 and 487,304.84
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Solution
The fourth proportional to 836,186.68, 1,153,918.25 and 487,304.84 is: 672,469.39
Step by Step Solution
- Step 1: Write the proportion equation
836,186.68 : 1,153,918.25 = 487,304.84 : x - Step 2: Convert to fraction form
836,186.68/1,153,918.25 = 487,304.84/x - Step 3: Cross multiply
836,186.68x = 1,153,918.25 × 487,304.84 - Step 4: Simplify right side
836,186.68x = 562,309,945,752.81 - Step 5: Solve for x
x = 562,309,945,752.81/836,186.68 - Step 6: Final answer
x = 672,469.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.